Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6460349 | Rotary valve unit in a pulse tube refrigerator | Shin Kawano, Masahumi Nogawa, Tatsuo Inoue | 2002-10-08 |
SK
Shinji Katsuragawa
Overall (All Time): #3,559,543 of 4,157,543Top 90%
1
Patents All Time